I think the new FCS2 system is excellent!!
I like that you can buy replacement or additional sizes. I run medium accelerators for side fins and a large performer in the centre. On a performance mal!
Replacement fins for FCS II Performer Tri & Quad sets in all materials.
Replacement fins for FCS II Performer Tri & Quad sets in Softflex, Glass Flex, Neo Glass, Performance Core & PC Carbon.
How to identify your missing fin
Turn your board upside down, and stand at the tail. Diagram below:
Free Shipping for fins over $25
A new kneeboard came with 3 medium FCS11 fins, which were OK but i needed more agility and maneuverability and the extra small FC11 performer fin in the rear, that i recently purchased, did the trick. Works great. Even the board designer said i may want this smaller fin.
Responsive, fast, durable, easy to pop in and out. What's not to love about these?